Improvement in sawing-machines



UNITED STATES PATENT OFFICE.

HOMER BEAN, OF FREDONIA, ASSIGNOR TO HENRY M. VVYETH, OF NEWARK, OHIO.

IMPROVEMENT IN SAWING-MACHINES.

Specification forming part of Letters Patent No. 116,539, dated July 4,1871.

To all whom it may concern:

Be it known that I, DE. HOMER BEAN, of Fredonia, in the county ofLicking and State of Ohio, have invented a new and Improved Sawing-Machine 5 and I do hereby declare the following to be a full, clear,and eXact description of the same, reference being had to theaccompanying drawing making a part of this specification, in which-Figure l is a plan view. Fig. 2 is a sectional eleva-tion in the line ofthe belt-tightener; and Fig. 3 is a transverse vertical section in frontof the sliding saw-frame.

This invention rela-tes to a machine for sawing wood into lengthssuitable for stoves, furnaces, &c., including both a circular and areciprocating saw, a portable frame bearing the operating mechanism; across-frame for sustaining the Wood hinged to the front end of theportable frame 5 a mechanism for raising and. lowering the reciprocatingsaw, and a mechanism for throwing into operation or out of it thefeed-roller 0n the hinged frame.

Referringto the drawing, A is the main portable frame. Built upon therear end of the frame A is a frame, B, on which is mounted a shaft, a,that bears the circular saw b. The shaft c is connected by a belt, c,with a wheel, d, that is fixed on a shaft, e, mounted in the main frameA. The shaft e is geared to the driving-wheel O. A Wristpin thatprojects from a wheel, f, fixed on the shaft e, is connected, by apitman, g, with a reciprocating frame, lL, that slides in guides fisecured to the main frame A. To the frame his jointed the rear end ofthe bar j, to the front end of which the saw 7c is secured. The saw-barpasses through a frame, l, between rollers m mounted therein, said frameworking on guides formed on the inner sides of vertical standards D Dthat spring from the main frame A near the front end thereof. The framel is connected, by a rod, n, with a lever, o, that is pivoted to thestandard D passing through a slot therein. By means of the lever' o andthe connecting-rod the frame lmay be raised or lowered, and with it thesaw k. A bar, p, jointed at its rear end to both standards D D', extendsthence forward above the saw. To the front end of the bar p a guide,

. q, is attached in a slot in which the saw lc works.

By the means above described the saw 7c is made to reciprocate so as todo its work, the circular saw b being also driven at the same time, andthe reciprocating saw is enabled to be placed in any desired positionwith reference to the wood to be sawn. E is the cross-frame that ishinged to the front end of the main frame, it being supported by a leg,r. Concave rollers s are mounted crosswise of the frame E at each sideof the saw k, said rollers being armed with teeth and serving both tosustain the log while sawing and to feed it for afresh cut. The formeroiiice said feed-rollers discharge in conjunction with a holdin g-bar,t, whose rear end is jointed to the side of a brace, u, that is placedbetween the standard l) and frame A. Said holding-bar is armed withteeth at its front end, which is directly above one of the feed-rollerss. t passes through a slot in a lever, v, that is jointed to thestandard D, so that by turning said lever forward the holding-bar may bemoved downward far enough to clamp the log between itself and thefeed-roller, and by turning the lever o backward the holding-bar israised and the log unclamped. rIhe lever v is provided with a tooth, w,projecting fromone side, and by moving the lever sidewise far enough tocause the teeth w to enter any one of the notches of a rack, x, that isaffixed to the front side of the standard D, the holding-bar t isVthereby' fastened. Their feeding function the rollers s discharge inconnection with a shaft, y, mounted crosswise of the frame A near thefront end thereof, said shaft bearing a bevelgear, z, that engages witha bevel-gear, c',xed on the inner end of one of the rollers s, andconsequently imparts rotation to the latter. The shaft y is connected,by a belt, b', with the shaft c of the driving-wheel C. The belt b' isloose on these two shafts and does not affect the rotation of the shafty unless tightened by means of a frame, d', within whichare placedrollers e', between which 011e branch ofthe belt b passes, said frame dsliding vertically on guides formed on the inner sides of standards G G1that spring from the frame A. rlhe frame d is connected by a rod withthe lever f', pivoted to the standard G1, so that, by depressing theouter end of said lever, the frame d is raised, the belt bl tightened,and motion consequently imparted to the shaft y and to the feed-rollerss. A lever, g', pivoted to a standard, G2, that springs from the frame Ais connected by a link with the inner end of the lever f', for thepurpose of en- The holding-bar i abling` an additional operator t0assist in tightening, the belt, b. After the 10g has been fed forwardfar enough the levers f' g are raised, the belt b loosened, and thefeeding stopped.

Having thus described my invention, what I claim as new, and desire t0secure by Letters Patent, is-

l. The saw-bar j, saw It, guidebar p q, frame l, standards D D,.andlever o, combined asspee ifled.

2. The hinged Gross-frame E provided With feed-rollers s and aleg, r,and combined with the main frame A, as described.

3. The feedrollers s, holding-bar t, lever fu, and rack .1', Combined asset forth.

4. The feed-rollers s, shafts y c', gears af z, belt b, and thebelt-tightener eonstrueted of frame d', rollers e, and leversf g', alleonstrueted, arranged, and operating as described.

Witnesses: DR. HOMER BEAN.

G. J. DreKrNsoN, G. A. SI-IIELDs.

